— 降低風險 · MEDIUM · MCQ —
護理師照護一名患有深層靜脈栓塞（DVT）且正接受肝素輸注的病人。護理師應優先關注哪項檢驗數據？
A nurse is caring for a client with a history of deep vein thrombosis (DVT) who is receiving heparin infusion. Which laboratory finding should the nurse prioritize?
- AProthrombin time (PT)凝血酶原時間 (PT)
- BPlatelet count血小板計數
- CActivated partial thromboplastin time (aPTT)✓ 正解活化部分凝血活酶時間 (aPTT)
- DInternational Normalized Ratio (INR)國際標準化比值 (INR)
— Explanation · 中文詳解 —
監測肝素治療效果的核心指標為 aPTT，需維持在對照值的 1.5-2.5 倍以達到治療目標。PT 及 INR 是用於監測口服抗凝血劑（如 Warfarin），血小板計數雖重要（預防 HIT），但若僅問及治療效果評估，aPTT 為首選。
Activated partial thromboplastin time (aPTT) is the standard laboratory test used to monitor the effectiveness of continuous heparin infusions, typically maintained at 1.5 to 2.5 times the control value. While platelet counts are monitored for heparin-induced thrombocytopenia, aPTT specifically assesses anticoagulation status.
✦ 台美臨床差異
美國多由護理師根據 aPTT 數值調整肝素滴速，台灣醫院多要求醫師親自調整或依嚴格醫囑執行。